Effects of meteo-oceanographic conditions on the weathering processes of oil spills in northeastern Brazil.

Mar Pollut Bull

Laboratory of Physical, Coastal and Estuarine Oceanography (LOFEC), Department of Oceanography (DOCEAN), Federal University of Pernambuco, Recife, PE, Brazil; Center for Risk Analysis, Reliability Engineering and Environmental Modeling (CEERMA), Federal University of Pernambuco, Recife, PE, Brazil; Brazilian Research Network on Global Climate Change (Rede CLIMA), São José dos Campos, SP, Brazil.

Published: January 2024

This paper presents the graphical results of the Lagrangian-model and the weathering processes associated with oil spills in the tropical South Atlantic, taking into account the meteorological and oceanographic conditions of the study region. The scenarios were created in the Brazilian-NE waters adjacent, with simulation times of 670 h, and densities of 35, 25, and 15API with volume of 1590 m were considered. The main results showed that the meteo-oceanographic characteristics of the study region influence the trajectories and weathering processes in the oil spill. The trajectories varied for each launch point and reached the continent severely in January and October. The associated weathering processes showed higher rates in September and lower rates in April, indicative of the influence of phenomena such as Intertropical Tropical Convergence Zone and warm pool in the South Atlantic region. Sea surface temperature and wind speed are key factors that correlate positively with these months.

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http://dx.doi.org/10.1016/j.marpolbul.2023.115828DOI Listing

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